Lock mechanism



Sept. 15, 1931. I H GORDON 1,823,650

LOCK MECHANISM Filed Deo. 31. 1928` a5. x9. EV 20. IB 441 55' 8 45 725 s@ A Patented Sept. 15, 1.931

UNETED STTS HARRY JULIUS GORDON, 0F `IVION'LRIEA, QUEBEC, CANAD LOCK MECHANISM Application filed December 31, 1928. Serial No. 329,500.

novel features of construction pointed out broadly and specifically in the claims for novelty following a description containing an explanation in detail of an acceptable form of the invention.

The objects of the invention are to afford greater security to the public in closing up' their possessions by means of padlocks or other forms of lock mechanism to particularly simplify the works in combination locks; to eliminate as far as possible thel necessity of repairs and if necessary through accident or other mishap to eect such repairs with despatch and at a very moderate expense; to enable the owner to change the combination with great facility with the lock in its open condition; and generally to provide a safe, durable and efficient combination lock mechanism.

In the drawings, Figure 1 is a longitudinal sectional view of the lock mechanism, as applied to a padlock.

Figure 2 is a cross section al view of the lock mechanismon the line 2-2 in Figure 1.

Figure 3 is a perspective detail of the key slotted member. y `A Figure 4 is a perspective detail of the setting key.

Figure 5 is a fragmentary detail of the outer end of the lock spindle.

Figure 6 is a fragmentary detail of the lock spindle in its set position.

Figure 7 is a fragmentary detail of the lock spindle in its sett-ing position.

Figure 8 is a front view of the lock as a plied to a door. i

Like numerals of reference indicate cor-V responding parts in the various figures.

Referringto the drawings, in padlock form the outer lock casing is indicated by the numeral 15. This casing is divided in the interior by the longitudinal partition plate 16 having the shackle orifice 17 ad]acent to one end thereof, the vertical partition plates 18 and 19 and the cross partition plate 20 forming a shackle stop under the shackle hole 21 in the casing 15, the shackle hole 22 in said casing 15 being in alignment with the shackle orifice 17 in the partition plate 16.

rlfhe rigid frame 23 is formed for the greater part of its length between the ends 24 and 25 secured to the walls of the outer casing 15 with the upturned flanges 26 and 27 extending tothe partition 16 and forming a channel section having the open orifices 28, 29 and 30 therethrough, leading into the tumbler chambers 31, 32, andv 33 respectively, these chambers being divided within the outer lock casing at the lower portion thereof by the division plates 34, 35, 36 and 37, each plate having a spindle orifice 38 therethrough and each chamber having a tumbler slot 39 through the bottom plate 40 of the casing 15. rIhe sliding frame 41 lits into the channel portion of the rigid frame 23 andis offset downwardly at the inner end 42" behind the division plate A34, and is offset downwardly at the outer end 43 behind the division plate 37 and adjacent to the wall of the casing 15, the said sliding frame 41 in its extension beyond the frame 23 having a shackle slot 44 in the closed condition of the lock in align.

.ment with the shackle holes 17 and 22.

The sliding frame 41 has three sets of pin holes and in each set the pin holes 45 and 46 form a air dividedby the stop portion 47.

The shackle 48 is formed with the short leg 49 and the long leg 50, the short leg 49 entering the shackle hole 21 extending to the stop 20, the long leg 50 extending through the shackle holes 22, 17 and 44 and spring held outwardly by the spring 51, ywhich engages the partition 16 around the hole 17, and the ring 52 encircling the long leg of the shackle and rigidly secured.

y The bolt hole `53 extends into the shackle 48 immediately above the sliding frame 41 in the closed condition of the lock.

The sliding frame 41 is formed with the upturned lug 54 intermediate of its length, said lug 54 having the stem hole 55 through which the stem 56 extends, the said steln carrying the locking bolt 57 and the encircling spring 58 for pushing the bolt into the bolt hole 53, and ine-.intaining` it in that position until forced therefrom.

The spindle 59 extends through the spindle orifices 38 in the aforesaid division plates 34, 35, 36 and 37 and also extends through the spindle oriiice 60 in the outer casing and at its outer end and at its inner end extends into the spindle orifice 61 in the outer casing. The spindle 59 is slotted at 62 adjacent to the outer end thereof, and through the outer end face has the threaded orifice '63 leading into the slot 62 and in which the adjusting screw 64 with the knurled head 65 turns to lengthen the spindle in the operation of changing t-he combination.

vThe collar G6 is fixed on the spindle 59 adjacent the wall of the casing l5, and the spring 67 encircles said spindle 59 between the outer offset 43, through which the spindl-e extends, and the division plate 37, thereby bringing the frame 41 and the vspindle 59 into coaction.

. The spring 68 encircles the spindle 59 between the offset 42 through which the spindlc extends, and the wall of the outer casing 15', thus the sliding frame vis resiliently held at both ends.

The spindle 59 extends through the three chambers `31, 32 Aand y33 and in 'each chamber is reduced to supporta rotary key G9, turning in'every case on the reduced portion, and having thesetting 4lug 70. In each chamber there is a tumbler 7l mounted on the spindl'e. This tumbler is held Abetween the washer ring 72 and the slotted setting ring 73, each ring engaging locking in a division plate between the tumbler chambers.

kEach tumbler is key slotted at 74 and each ring has `the several longitudinal key slots 75 extending from the body 7 6 of the ring, the lugs 77 extending on the other side beyond saidbody through corresponding slots in the division therebehind, thus the -key is set 'in afcertain `one of the slots 75 and "the tumbler must be turned until its slot 7 4 registers with the particular key'slot 75, and for this rpurpose the tumbler is formed with the smooth Clicking teeth 78, one tooth having a stop wall 79, these tumblers each being engaged between the teeth by a straddling dogSO spring-held downwardly and having a `pin extension 8l extending through a Apin orifice 28, 29 or 30 and through one or other of the ,pin orifices 45, or 46 when the tumbler is turned.

The sleeve 82 encircles the key settingring 73 and securelyV closes the slots 75 from all outside interference. The sleeve 83 encircles the washerring72 andthe two sleeves act as spacers and are recessed into the :tumbler slightly and'abut the division plates 35 and 34`respectively. u

In the operation ofthis lock, it Ais -perhaps simpler to describe first the setting of the combination. The teeth of thetumble'rs lare numbered from 'zero up, Zero being diametrically opposite the neighboring tooth to the fiat wall or stop 79, and these numbers appear through the tumbler slots in the bottom of the outer casing l5, and may be mov-ed by the thumb 0r finger of the hand.

The tuinblers turn freely on the spindle and the keys enga-ge in the key slot and the key setting ring.

In order to choose a number of a particular tumbler all the tumblers must be at their old numbers,v then the spindle is leugthened by turning the knurled head 65. The spindle is pushed inward-ly and this carries the frame beyond the opening position to the setting position -and coincidently carries the keys into the key slots of the tumblers clear of the key setting rings.

The tumbler is now turned to the chosen number and the spindle then sprung back to its outer position, the key entering one of the key slots in the key setting ring.

During this part of the operation the pin of the dog 8O operates in the pin hole 46 whereas in the locked position of the bolt on the sliding frame it operates in the pin hole 45, and it will be noticed that between these pin holes, the combination cannot be operated at all, on account of the stop plate portion separating the vpin holes.

In closing the lock with the spindle in its proper position, the shackle is inserted in the shackle holes and the shackle forced inwardly against spring pressure until the locking bolt snaps into the bolt hole in the shackle.

In this position th-e shackle extends through a slot in the sliding frame, 'and this frame clears said shackle in operation, therefore to open the lock the tumblers must first be brought into registering position with the keys and to do this it is necessary :to find the right numbers. If the tumbler slot is opposite the particular slot in the key ring,1t'hen there is nothing vto prevent vthe yspindle being pushed inwardly as the shackle in no way interferes with this. In pushing it inwardly the lock allows a certain amount of slip -on the stem 56 carrying the bolt 57. 'Ihisbrings the pins 8l of the Idogs 80 between the pin holes 45 and 46, so that the ytumblers are actually locked from operation, until the `bolt begins to move, which happens'at the end of this slip for the lug on the sliding frameengages the headed end of the stem and carries the bolt out of the shackle, and as soon asit clears the shackles, the shackle moves out bythe forceof the spring, leaving the `lock open.'

In applying this lock to doors asillustrated in Figure 8 there may be some slight changes necessaryv in the positions of Vthe various parts, but the salient features of the invention willremain thesame,it`is merely afdiflerent application.

In 'Figure 8 a general view shows a possible applicationof thesame mechanism, to a door lock in which an ordinary bolt 84 is shot by sliding the lug 85 in the slotted face plate 86, the bolt 84 having a cross bolt slot not shown for the locking bolt 57, the spindle 59 is operated by the button 87 to suit the tumblers 7l, otherwise the invention is the same and only the application is different.

llllhat I claim is l. 1n a padlock, a casing and locking mechanism contained therein, and having a plurality of compartments, shackle holes and tumbler slots, a plurality of tumblers extending through said slots and enclosed in sep,- aratc divisions in one of said compartments and having key slots therein, a push spindle extending through said tumblers, a plurality of slotted key rings encircling said spindle and engaging said tumblers, rotatable keys engaging said rings in chosen positions in relation to said tumblers.

2. A padlock comprising an outer casing having shackle and locking mechanism comj'iartments, a. shackle introduced therein, a channel frame rigidly secured in said casing and having pin holes therethrough, a slotted 'frame having pin holes in pairs and an upstanding lug` and mounted on said rigid 'frame and spring held to its outer position, a push spindle extending inwardly, suitably mounted and having key bearings, loose keys mounted on said bearings, non-rotative slotted key setting rings encircling said spindle and engaging tumblers, a plurality o!I tumblers mountedon said spindle, spring held dogs engaging said tumblers and having pins projecting upwardly through said pin holes, and a locking bolt spring-held in said lug in said sliding frame, a stem from said bolt extending through said lug and having a head on the end beyond said lug.

3. A padlock, comprising a shackle, an outer casing receiving said shackle, a rigid channel frame secured within said casing and having pin holes therethrough, a sliding frame having pin holes in pairs cooperating with the aforesaid pin holes and downwardly ollset ends, a plurality of tumblers having key slots therein and smooth teeth in circular rows terminating at the top wall diametrically opposite to the Zero tooth, each of the other teeth being numbered, a push spindle extending through said tumblers, rotary keys carried on said push spindle and key setting rings slotted longitudinally and engaged by said tumblers and dogs spring held constantly to the teeth of said tumblers, stationary in relation thereto and having pins projecting upwardly through the channel frame and adapted on the turning of the tumblers to project further through one or other of each pair of holes, and a locking bolt carried by said sliding frame and spring held in said shackle and having a stem therefrom forming a slip movement in the initial movement of the sliding frame to withdraw the bolt.

4. A padlock, comprising a casing containing partitions and vertical divisions having spindle orifices, a spindle extending into and through said casing and reduced at places to form bearings and slotted near the outer end and having an adjusting screw screwing into said slot, rotary keys mounted on said bearings having lugs projecting upwardly therefrom, tumblers, one in each tumbler compartment having clicked teeth suitably numbered, a key setting ring for each tumbler non-rotatively secured in each vertical division and extending to the tumbler and holding the key, a washer ring spacing the tumbler from a division on the other side of the key ring, a project-ing sleeve enclosing each of the key rings, a rigid frame in channel shape having pin holes therethrough, a sliding frame downwardly offset at the inner and outer ends, and having pairs of pin holes and a shackle slot at the front end, springs holding said sliding frame to its outer position, a locking bolt spring-held from said locking frame and a shackle introduced in said outer casing, having a shackle hole therein recessed for said locking bolt.

5. A lock mechanism, comprising a bolt and a shackle, la casing, a push spindle slidably mounted in said casing and a ratchet tumbler rotatably mounted thereon and spring-held to its various positions, means for locking the tumbler on pushing in the spindle while the bolt is sh ot, means for locking the spindle during the rotation of the tumbler, means for setting the lock operable with the spindle at its extreme inner position, and means connected to the frame for shooting the bolt.

6. In alock mechanism, a casing having shackle chambers, a shackle fitting into said chambers and having a bolt slot adjacent to one end thereof, a tumbler compartment within said casing, a tumbler in said compartment having an encircling ratchet, a spindle carrying said tumbler and a slotted frame lixedly secured to said spindle and sliding therewith, a spring-heldl dog engaging said ratchet and having a stem slidably mounted in the wall of said compartment and engaged by said sliding frame and registering with the slots in said frame, a key loosely mounted onsaid spindle, a key slotted setting ring in constant engagement with said tumbler and coacting with said key in determining the number, and a spring-held bolt and a stem therefrom having a slip mounting in said frame. f

Signed at Montreal, Canada, this 13th day of December, 1928.

HARRY JULIUS GORDON. 

